Difference between long and short block?

[Yennes]

Hi FBBO,

I am 100% sure you can help me and tell me what the difference between a long block and a short block is.

Does all blocks were „available“ as long/short block?

Thanks

 

[QuickBpBp]

Long block has the heads, cam, lifters and rockers and short block is just the block, crank, pistons and rods...

 

[33 IMP]

A short block is what is under the cylinder heads, usually but not always, not including cam and lifters, kinda depending on if it's intended as a high performance piece (likely no cam) or a rebuilder special (more likely to include cam and lifters.
A long block is a short block, plus cylinder heads installed. May or may not have valve train, but the heads will be assembled. Intake, carb, water pump, distributor, flywheel/flexplate, and sheet metal will not be included.

 

[Kern Dog]

Those terms are usually used to describe an engine in relation to how complete it is.
It could be a used, a rebuilt or a new engine.
The "short block" usually consists of an engine block with the crankshaft, rods and pistons installed. Sometimes the cam shaft, timing chain are included.
A "Long block" is the entire short block assembly but with cylinder heads installed. In some cases, the long block also includes an oil pan, timing cover and valve covers.

 

[Yennes]

Thank you all! Not as complicated as I thought! Appreciate all your answers!

 

[Dave6T4]

About two cylinders. LOL

 

[Don Frelier]

That's the long and short of it

 

[33 IMP]

About two cylinders. LOL

That's the long and short of it

Funny. I have two straight eights, I guess they are "long blocks". Lol.
I remember many many years ago, when jaguar brought out their v12, an XKE owner wanted his own "twelve". So, he joined two dohc jag sixes, made himself a straight twelve. A long time ago, long, long block. Lol.

 

[1 Wild R/T]

Funny. I have two straight eights, I guess they are "long blocks". Lol.
I remember many many years ago, when jaguar brought out their v12, an XKE owner wanted his own "twelve". So, he joined two dohc jag sixes, made himself a straight twelve. A long time ago, long, long block. Lol.

No.... They are "Skinny Blocks"...